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Income Taxes (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Income Taxes [Abstract]          
Effective tax rate     35.40% 38.10%  
Federal tax rate 34.00% 34.00% 34.00% 34.00%  
Capital loss carryforward $ 0   $ 0   $ 0
Operating loss carryforward $ 0   $ 0   $ 0